. >>> cbs reporter susan mcginnis reports on the latest step in the obama administration's effort to pass new gun control legislation. >>> reporter: vice president joe biden is heading to virginia today to try to gain public support for president obama's gun control proposals. >> it's not about keeping bad guns out of the hands of good people. it's about keeping all guns out of the hands of bad people. >> reporter: on capitol hill thursday gun victims and law enforcement officers joined a group of democratic lawmakers as dianne feinstein announced her own bill which would eliminate high capacity magazines and ban assault weapons. >> military-style assault weapons have but one purpose, and in my view that's a military purpose. >> reporter: the lawmakers say the shooting at sandy hook elementary school shows that assault weapons need to be banned. >> a number of the police who came to newtown said to me, we could not have stopped that shooter even with the body armor we were wearing with that kind of assault weapon. >> reporter: but vice president biden downplayed the need for an assau